Keyhole-illuminator.



M. P. BIXBY & J. B. TAYLOR.

KEYHOLE ILLUMINATOR.

APPLICATION FILED JULY 19, mm.

1 284,570. Patented Nov. 12, 1918.

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KEYHOLE ILLUMINATOR.

APPLICATION FILED JULY 19. 1911.

1,284,570. Patented Nov. 12, 1918.

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MFBZZ fi M5. Tag 07" MILO P. BIXBY AND OHN B.' TAYLOR, OF .B'U'TTE,MONTANA.

KEYHOLE-ILLUMINATOB.

To all whom it may concern:

Be it known that we, MILO P. BIXBY and JOHN B. TAYLOR, citizens of theUnited States of America, residin at Butte, in the county of Silverbowand tate of Montana, have invented certain new and useful Improvementsin Keyhole- Illuminators, of

which the following is a specification, refer-' wherein a cradle iscarried withinthe,

pocket, so as to permit a battery to be car ried. by the cradle, wherebythe lifting bar which engages the cradle may lift the same for causingthe battery to close the circuit for lighting the lamp.

With these and other objects in view this invention consists of certainnovel combinations and arrangements of parts, as will be hereinaftermore fully described and claimed.

In the accompanying drawings I Figure 1 is a side elevation of a doorplate, with the knob tpartly broken away, illustrating the grip o thelift bar.

Fig. 2 is a front elevation of a door and lock, thereby showing the gripof the lift bar projecting outwardly from the door.

F1g. 3 is a central vertical section through the device.

Fig. 4 is a horizontal section taken on the line 4-4 of Fig. 2.

Fig. 5 is a fragmentary sectional view through a portion of thestructure illustrating the manner in which the grip of the lift barprojects outwardly.

Fig. 6 is a transverse section through the cradle showing the lift barin elevation and Specification of Letters Patent.

further object of this invention Patented Nov. 12, 1918.

Application filed. July 19, 1917. Serial No. 181,612.

illustrating the manner in which this lifting bar engages the cradle.

Fig. 7 is an enlarged detail perspective view of the cradle.

Fig. 8 .is an enlarged detail perspective view of the retaining plate.

Fig. 9 is an enlarged detail perspective view of the liftin bar.

- Fig. 10 is a sectional view through a ortion of the bar. illustratingan elevation in a slightly modified form, in the manner in which thelamp is mounted.

Bv referring to the accompanyi drawings by numerals it will be seen t atthe door 1 is provided with a usual lock 2, carried adjacent and abovethe rectangular pocket 3, formed to communicate with the forward edge ofthe door 1. The usual plate 4 is carried upon the door 1 as shown inFig. 1, and is provided with the usual key hole 5, formed in alinementwith the key hole 6, formed in the lock 2. The door 1 is provided with aslot 7 and projects in alinement with the slot 8, formed through theplate 4.

In the preferred form the lam 9 has its socket 10 projecting through theower portions of the lock 2, as shown in Fi 3, so

as to be carried by the plates 11, in this manner it will be seen thatthe lamp 9 by being (positioned within the lock 2 will be carrieadjacent the key holes 6 and 5, whereby when the lam is illuminated thekey holes will also be il uminated for facilitating the insertion of akey thereinto.

The cradle comprises a base 12, having a curved elongated back'13, whilethe arallel side flanges 14 are formed upon the ase 12 projectingthereabove, and extending along the side edges of the back 13. Thiscradle is positioned within the pocket 3, formed within the door'l andcarries a battery 15. At this time the closure plate 16v is positionedupon the door 1 so as'to fit over the upward outer portion of the pocket3. This closure plate 16 is provided with an opening 16' formed therein,through which the screw 17 extends for fixedly retaining the closureplate 16 in a set position upon the door 1. A stem 18 is fixedly mountedupon the plate 16, whilethe retaining plate 19 isfixedly mounted uponthis stem 18. This retaining plate 19 is bent along its longitudinalaxis so as to be partially circular n cross section, whereby it maconform in contour to the shape of the attery 15, so as to fit upon thebattery.

By referring particularly to Fig. 3, it will be seen that when theclosure plate 16 is in a set position upon the door 1, the outer end ofthe base 12 of the cradle will bear against the closure plate therebyforming a guide for the lower portions of the cradle. It will also benoted at this time that the battery 15 will be held upon the cradle,since the back 13 will bear upon one side of the battery and theretainingplate l9, Wlll bear upon the opposite side of the batteryywhflethe flanges let will hold the battery against side displacement.

A lift bar 20 is elongated and has a foot 21 formed upon its lower end,The 1ntegral grip 22 is formed upon the upper end of the lift bar 20,and this grip 22 projects toward one side of the lift bar in theopposite direction of which the foot 21 extends. The foot 21 extendsbeneath the base 12 of the cradle, as shown in Fig. 6, while the liftbar 20 projects upwardly beside the bar and lock, as shown in Figs. 3and 5, whereby the grip 22 projects outwardly through the slots 7 and 8.

The battery 15 is of course provided with the usual contact finger 23and contact tongue 24.

When this key hole is in operation, it will be noted that the batterywill be carried upon the cradle in the manner above specified, adjacentthe lower portions of the pocket 3, when, however, it is desired toilluminate the key holes 5 and 6, the operator pulls the grip 22 towardthe upper ends of the slots 7 and 8. This action will lift the lift bar20, thus, causing the foot 21 to lift the cradle. As the cradle islifted it will be, of course, obvious that the battery 15 will be movedupwardly since the retaining plate 19 will hold the battery upon thecradle, although permitting the battery to be lifted. As the battery islifted, it is obvious that the contact tongue 24 will engage the lowerend of the socket, which is shown in Fig. 3, while the contact finger 23will come into engagement with the plate 11, thus, closing the circuit.As the lamp 9 is illuminated the rays of light projecting therethrough,will illuminate the key holes 6 and 5 and facilitate the insertion of akey into the key holes.

By referring particularly to Fig. 10, it will be seen that a slightlymodified manner of acquiring the lamp is employed, where it isimpossible to position the lamp within the lock, or when the key hole isso small as to prevent the lamp from being positioned upon the interiorof the structure adjacent the key hole. Under such conditions thebattery is mounted in all respects similar to that shown in thepreferred form, and it 15 therefore not deemed. necessary to make such ashowing in Fig. 10, inasmuch as the only difi'erence is the manner inwhich the light is supported. The door 1 is provided with a lock2, whilethe Wires 25, and 26 extend to a socket 27 of the lamp 28. The lowerends of the wires or other conductors 25 and 26 are bent toprovidecontact feet 29. These contact feet 29 are positioned within the path oftravel of the contact fingel" 23, and contact tongue 24-, of the usualbattery 15. As thelift bar 20' is lifted by means of the grip 22 it willbe seen that the battery 15 being lifted will cause the finger 23 andtongue 2% to be lifted into engagement with the contact feet 29, thus,closing the circuit for lighting the lamp 28. This lamp being located atthe outer surface of the door, will cause its rays of light to beprojected to the key hole plate 30 for faciligatling the insertion of akey into the key From the foregoing description, it will be seen that avery eificient key hole illuminator has been produced, by means of whichthe operator may easily close the circuit for the lighting of the lamp,thereby allowing the key hole to be illuminated, although upon therelease of the grip of the lift her, the battery and the cradle willreturn to their normal positions of the lower portion of the pocketformed in the door, since the retainmg plate and the closing plate willconstitute guides in causing the cradle to return to its normalposition, and at the same time retain the battery upon the cradle. It isof course, obvious that many minor detail changes may be made in theconstruction of this invention, without departing from the spirit of thesame, and it is, therefore, not

desired to limit the construction of the device to the specific form, asherein shown, but to include all such forms as properly come within thescope of the invention as claimed.

What is claimed is 1. in a key hole illuminator, the combina tion with adoor having a lock provided with a key hole, said door having aninternal pocket, a lamp carried by said lock adjacent said key hole, ofa cradle positioned within said pocket, said cradle comprising ahorizontal base having a vertical back formed thereon, vertical,parallel flanges extending from said base and engaging the side edges ofsaid back, a battery positioned upon said base, said back and flangesengaging said battery and holding same from displacement, a lift barcarried by said door and p0 sitioned under said cradle for lifting sameand the battery, and means electricall connecting said lamp and batterywhen said bar is lifted for lighting the lamp.

2. In a key hole illuminator, the combination with a door having a lockprovided with a key hole, said door having'an internal pocket, a lampcarried adjacent said key hole, of a cradle positioned within saidpocket, said cradle comprising a horizontal ase and a vertical back, abattery resting upon said base and engaging said back, a lift barengaging the under face of said base,

key hole, a cradle positioned within said pocket, a battery resting uponsaid cradle, a closure plate fastened to said door, a horizontal stemextending. from said closure plate, a retaining plate carried by saidstem battery, and means electrically and engaging'said battery, a liftbar engaging said cradle for lifting the cradle and the connecting saidlamp and battery, when sa1d cradle and battery are lifted, for lightingthe lamp.

4. In a device of the class described, the combination with a door, alamp carried by said door, a cradlecarried by said door and providedwith battery receiving means, a

battery in said battery receiving means, a

stationary battery-guiding plate carried by said. door, a lift barrovided with an extension at one end pro ecting beyond the face of the.door and provided at itsopposite end with an extension under saidcradle, and means electrically connecting said lamp with said battery,when said cradle and battery are lifted for lighting the lamp.

In testimony whereof we hereunto afiix our signatures.

'M. P. BIXBY.

JOHN B. TAYLOR.

